161066117199 has 8 divisors (see below), whose sum is σ = 231274424752. Its totient is φ = 99117610560.

The previous prime is 161066117167. The next prime is 161066117209. The reversal of 161066117199 is 991711660161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161066117199 - 2⁵ = 161066117167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161066117999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2064950182 + ... + 2064950259.

It is an arithmetic number, because the mean of its divisors is an integer number (28909303094).

Almost surely, 2^161066117199 is an apocalyptic number.

161066117199 is a deficient number, since it is larger than the sum of its proper divisors (70208307553).

161066117199 is a wasteful number, since it uses less digits than its factorization.

161066117199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4129900457.

The product of its (nonzero) digits is 122472, while the sum is 48.

The spelling of 161066117199 in words is "one hundred sixty-one billion, sixty-six million, one hundred seventeen thousand, one hundred ninety-nine".